Obviously with a trick. Look at the photos, you will see the aluminum and the stainless steel bowl. It's easy, I will wrap around the hole a copper foil (the same used in stained glass) and the same around the bowl, then I can easily tin weld. Nex time I will show how to do with photos. P.S. I've used very good nips to cut the aluminum, see photo
Very nice work can't wait to see the finish product.
Ready for soldering.
think you might get an interesting sound out of that setup mario
Here is some photo during soldering. The most important is to make a good layer of tin of the iside of the "bottle" and on the bottom of the bowl. After that you can solder being shure that anything will collapse.
If this guitar will pay me back for the love I put building it...:-) :-) :-)
I admit I take inspiration from Tinyguitar's "double bottom De Soto", but I crossed it with a design of a "trasmission line" loudspeaker baffle, the "Spika" of Alberto Bellino. If you look at the design, will see the double bottom at a distance of 5 millimeters connected thru an hole to the baffle. Is a kind of resonator that works in the range of low frequencies. Me too can't wait to hear if it works. Hope to finish in jenuary
I forget to show the overall design. There is an hole on the bottom of the aluminum bottle, roughly 3 centimeters, that I've missed to design. In reality, this is a design I made for another project, but the phisics is the same
May be better if I use my wood for this ?
Metal. I've decided to remake it with metal. In a first time I make it whit cardboard to have a mold, but I throw it away and I'm doing it direcly with iron. I'm using an old ice cream advertising, cool :-) When finished, it will be full covered whit tin, then copper chemically coloured/covered. I have to remake it why I have to respect the distance of 5 millimeters between the aluminum bottle and the body. The previous wood body don't respect this condition.
So many years without soldering, I have to exercise. Sorry for my ridiculous english, but my wife is French and she wants I learn french, so in my mind there is a big confusion. When finished it will be encased in a tennis-like wood structure